I also use DosBox on my VISTA PC it's compatibility is great but timing adjustment for each game is a bitch.

OS/2 Warp does not have great MSDOS game compatibility as DOS system calls are not implemented inline with MSDOS.
However it is a great OS & at the time pi**ed all over Win3.1, I boot it occaisionally under Virtual PC.

Lollypop is pretty awesome, too. And it looks much better than on Amiga, because it has 256 colors on MS-DOS.

right ...lollypop DOS version is far better than the amiga
supports 256 colors but also on the DOS version you can play with music+sound effects at the same time
on the amiga version you only can choice or music or sound effects...(amiga 4 channels limitation)

generally games from 1993 and later are better on DOS cause best hardware,specially adventure games

another reason that I prefer DOSBOX than the original hardware (ex a pentium 75 + soundblaster).....is that on DOSBOX you can use screen filters like 2xSAI or scale2x or advanced mame3x and many others

that filters makes all games looks superb and not pixelated like on the original hardware